It's now (sort of) available directly. We can stick an NVDIMM in our server and use it as really fast nonvolatile memory, instead of buying a fancy enterprise storage system (Fusion-io, Violin, etc.) that acts like a disk and may contain any of a number of interesting nonvolatile memory technologies.
The price, size, and performance characteristics of non-volatile memory in your server and the various fast disk replacements are very different.
Huh?
It's in most (if not all) "enterprise" storage stacks.. are you speaking about a specific type of nvram?